diff --git a/test/test-execute/exec-bindpaths.service b/test/test-execute/exec-bindpaths.service
index 7bd8fa7402..edab18bb0f 100644
--- a/test/test-execute/exec-bindpaths.service
+++ b/test/test-execute/exec-bindpaths.service
@@ -4,14 +4,14 @@ Description=Test for BindPaths= and BindReadOnlyPaths=
 [Service]
 Type=oneshot
 # Create a file in /tmp/test-exec-bindpaths
-ExecStart=/bin/sh -c 'touch /tmp/test-exec-bindpaths/thisisasimpletest'
+ExecStart=touch /tmp/test-exec-bindpaths/thisisasimpletest
 # Then, the file can be access through /tmp
-ExecStart=/bin/sh -c 'test -f /tmp/thisisasimpletest'
+ExecStart=test -f /tmp/thisisasimpletest
 # Also, through /tmp/test-exec-bindreadonlypaths
-ExecStart=/bin/sh -c 'test -f /tmp/test-exec-bindreadonlypaths/thisisasimpletest'
+ExecStart=test -f /tmp/test-exec-bindreadonlypaths/thisisasimpletest
 # The file cannot modify through /tmp/test-exec-bindreadonlypaths
 ExecStart=/bin/sh -x -c '! touch /tmp/test-exec-bindreadonlypaths/thisisasimpletest'
 # Cleanup
-ExecStart=/bin/sh -c 'rm /tmp/thisisasimpletest'
+ExecStart=rm /tmp/thisisasimpletest
 BindPaths=/tmp:/tmp/test-exec-bindpaths
 BindReadOnlyPaths=/tmp:/tmp/test-exec-bindreadonlypaths
diff --git a/test/test-execute/exec-dynamicuser-statedir-migrate-step1.service b/test/test-execute/exec-dynamicuser-statedir-migrate-step1.service
index 83bdfb311a..72e6d7686f 100644
--- a/test/test-execute/exec-dynamicuser-statedir-migrate-step1.service
+++ b/test/test-execute/exec-dynamicuser-statedir-migrate-step1.service
@@ -2,14 +2,14 @@
 Description=Test DynamicUser= migrate StateDirectory= (preparation)
 
 [Service]
-ExecStart=/bin/sh -c 'test -w /var/lib/test-dynamicuser-migrate'
-ExecStart=/bin/sh -c 'test -w /var/lib/test-dynamicuser-migrate2/hoge'
-ExecStart=/bin/sh -c 'test ! -L /var/lib/test-dynamicuser-migrate'
-ExecStart=/bin/sh -c 'test ! -L /var/lib/test-dynamicuser-migrate2/hoge'
-ExecStart=/bin/sh -c 'test -d /var/lib/test-dynamicuser-migrate'
-ExecStart=/bin/sh -c 'test -d /var/lib/test-dynamicuser-migrate2/hoge'
-ExecStart=/bin/sh -c 'touch /var/lib/test-dynamicuser-migrate/yay'
-ExecStart=/bin/sh -c 'touch /var/lib/test-dynamicuser-migrate2/hoge/yayyay'
+ExecStart=test -w /var/lib/test-dynamicuser-migrate
+ExecStart=test -w /var/lib/test-dynamicuser-migrate2/hoge
+ExecStart=test ! -L /var/lib/test-dynamicuser-migrate
+ExecStart=test ! -L /var/lib/test-dynamicuser-migrate2/hoge
+ExecStart=test -d /var/lib/test-dynamicuser-migrate
+ExecStart=test -d /var/lib/test-dynamicuser-migrate2/hoge
+ExecStart=touch /var/lib/test-dynamicuser-migrate/yay
+ExecStart=touch /var/lib/test-dynamicuser-migrate2/hoge/yayyay
 
 Type=oneshot
 DynamicUser=no
diff --git a/test/test-execute/exec-dynamicuser-statedir-migrate-step2.service b/test/test-execute/exec-dynamicuser-statedir-migrate-step2.service
index 8154922a2f..5a61228c9f 100644
--- a/test/test-execute/exec-dynamicuser-statedir-migrate-step2.service
+++ b/test/test-execute/exec-dynamicuser-statedir-migrate-step2.service
@@ -2,22 +2,22 @@
 Description=Test DynamicUser= migrate StateDirectory= (preparation)
 
 [Service]
-ExecStart=/bin/sh -c 'test -w /var/lib/test-dynamicuser-migrate'
-ExecStart=/bin/sh -c 'test -w /var/lib/test-dynamicuser-migrate2/hoge'
-ExecStart=/bin/sh -c 'test -L /var/lib/test-dynamicuser-migrate'
-ExecStart=/bin/sh -c 'test -L /var/lib/test-dynamicuser-migrate2/hoge'
-ExecStart=/bin/sh -c 'test -d /var/lib/test-dynamicuser-migrate'
-ExecStart=/bin/sh -c 'test -d /var/lib/test-dynamicuser-migrate2/hoge'
-ExecStart=/bin/sh -c 'test -f /var/lib/test-dynamicuser-migrate/yay'
-ExecStart=/bin/sh -c 'test -f /var/lib/test-dynamicuser-migrate2/hoge/yayyay'
-ExecStart=/bin/sh -c 'test -d /var/lib/private/test-dynamicuser-migrate'
-ExecStart=/bin/sh -c 'test -d /var/lib/private/test-dynamicuser-migrate2/hoge'
-ExecStart=/bin/sh -c 'test -f /var/lib/private/test-dynamicuser-migrate/yay'
-ExecStart=/bin/sh -c 'test -f /var/lib/private/test-dynamicuser-migrate2/hoge/yayyay'
-ExecStart=/bin/sh -c 'touch /var/lib/test-dynamicuser-migrate/yay'
-ExecStart=/bin/sh -c 'touch /var/lib/test-dynamicuser-migrate2/hoge/yayyay'
-ExecStart=/bin/sh -c 'touch /var/lib/private/test-dynamicuser-migrate/yay'
-ExecStart=/bin/sh -c 'touch /var/lib/private/test-dynamicuser-migrate2/hoge/yayyay'
+ExecStart=test -w /var/lib/test-dynamicuser-migrate
+ExecStart=test -w /var/lib/test-dynamicuser-migrate2/hoge
+ExecStart=test -L /var/lib/test-dynamicuser-migrate
+ExecStart=test -L /var/lib/test-dynamicuser-migrate2/hoge
+ExecStart=test -d /var/lib/test-dynamicuser-migrate
+ExecStart=test -d /var/lib/test-dynamicuser-migrate2/hoge
+ExecStart=test -f /var/lib/test-dynamicuser-migrate/yay
+ExecStart=test -f /var/lib/test-dynamicuser-migrate2/hoge/yayyay
+ExecStart=test -d /var/lib/private/test-dynamicuser-migrate
+ExecStart=test -d /var/lib/private/test-dynamicuser-migrate2/hoge
+ExecStart=test -f /var/lib/private/test-dynamicuser-migrate/yay
+ExecStart=test -f /var/lib/private/test-dynamicuser-migrate2/hoge/yayyay
+ExecStart=touch /var/lib/test-dynamicuser-migrate/yay
+ExecStart=touch /var/lib/test-dynamicuser-migrate2/hoge/yayyay
+ExecStart=touch /var/lib/private/test-dynamicuser-migrate/yay
+ExecStart=touch /var/lib/private/test-dynamicuser-migrate2/hoge/yayyay
 
 Type=oneshot
 DynamicUser=yes
diff --git a/test/test-execute/exec-dynamicuser-statedir.service b/test/test-execute/exec-dynamicuser-statedir.service
index 5ea6d9da42..c771717904 100644
--- a/test/test-execute/exec-dynamicuser-statedir.service
+++ b/test/test-execute/exec-dynamicuser-statedir.service
@@ -2,17 +2,17 @@
 Description=Test DynamicUser= with StateDirectory=
 
 [Service]
-ExecStart=/bin/sh -c 'test -w /var/lib/waldo'
-ExecStart=/bin/sh -c 'test -w /var/lib/quux/pief'
-ExecStart=/bin/sh -c 'touch /var/lib/waldo/yay'
-ExecStart=/bin/sh -c 'touch /var/lib/quux/pief/yayyay'
-ExecStart=/bin/sh -c 'test -f /var/lib/waldo/yay'
-ExecStart=/bin/sh -c 'test -f /var/lib/quux/pief/yayyay'
-ExecStart=/bin/sh -c 'test -f /var/lib/private/waldo/yay'
-ExecStart=/bin/sh -c 'test -f /var/lib/private/quux/pief/yayyay'
+ExecStart=test -w /var/lib/waldo
+ExecStart=test -w /var/lib/quux/pief
+ExecStart=touch /var/lib/waldo/yay
+ExecStart=touch /var/lib/quux/pief/yayyay
+ExecStart=test -f /var/lib/waldo/yay
+ExecStart=test -f /var/lib/quux/pief/yayyay
+ExecStart=test -f /var/lib/private/waldo/yay
+ExecStart=test -f /var/lib/private/quux/pief/yayyay
 
 # Make sure that /var/lib/private/waldo is really the only writable directory besides the obvious candidates
-ExecStart=/bin/sh -x -c 'test $$(find / -type d -writable 2> /dev/null | egrep -v -e \'^(/var/tmp$$|/tmp$$|/proc/|/dev/mqueue$$|/dev/shm$$|/sys/fs/bpf$$)\' | sort -u | tr -d '\\\\n') = /var/lib/private/quux/pief/var/lib/private/waldo'
+ExecStart=sh -x -c 'test $$(find / -type d -writable 2> /dev/null | egrep -v -e \'^(/var/tmp$$|/tmp$$|/proc/|/dev/mqueue$$|/dev/shm$$|/sys/fs/bpf$$)\' | sort -u | tr -d '\\\\n') = /var/lib/private/quux/pief/var/lib/private/waldo'
 
 Type=oneshot
 DynamicUser=yes
diff --git a/test/test-execute/exec-restrictnamespaces-mnt-blacklist.service b/test/test-execute/exec-restrictnamespaces-mnt-blacklist.service
index ab909cbd94..7756a2575e 100644
--- a/test/test-execute/exec-restrictnamespaces-mnt-blacklist.service
+++ b/test/test-execute/exec-restrictnamespaces-mnt-blacklist.service
@@ -3,5 +3,5 @@ Description=Test RestrictNamespaces=~mnt
 
 [Service]
 RestrictNamespaces=~mnt
-ExecStart=/bin/sh -x -c 'unshare -m'
+ExecStart=unshare -m
 Type=oneshot
diff --git a/test/test-execute/exec-restrictnamespaces-mnt.service b/test/test-execute/exec-restrictnamespaces-mnt.service
index 1aeed72717..2c5b942601 100644
--- a/test/test-execute/exec-restrictnamespaces-mnt.service
+++ b/test/test-execute/exec-restrictnamespaces-mnt.service
@@ -3,5 +3,5 @@ Description=Test RestrictNamespaces=mnt
 
 [Service]
 RestrictNamespaces=mnt
-ExecStart=/bin/sh -x -c 'unshare -m'
+ExecStart=unshare -m
 Type=oneshot
diff --git a/test/test-execute/exec-restrictnamespaces-no.service b/test/test-execute/exec-restrictnamespaces-no.service
index 33500302d2..5ffe081e45 100644
--- a/test/test-execute/exec-restrictnamespaces-no.service
+++ b/test/test-execute/exec-restrictnamespaces-no.service
@@ -3,5 +3,5 @@ Description=Test RestrictNamespaces=no
 
 [Service]
 RestrictNamespaces=no
-ExecStart=/bin/sh -x -c 'unshare -m -u -i -n -p -f'
+ExecStart=unshare -m -u -i -n -p -f
 Type=oneshot
diff --git a/test/test-execute/exec-restrictnamespaces-yes.service b/test/test-execute/exec-restrictnamespaces-yes.service
index 3fe70e2bea..8e077ed3a0 100644
--- a/test/test-execute/exec-restrictnamespaces-yes.service
+++ b/test/test-execute/exec-restrictnamespaces-yes.service
@@ -3,5 +3,5 @@ Description=Test RestrictNamespaces=yes
 
 [Service]
 RestrictNamespaces=yes
-ExecStart=/bin/sh -x -c 'unshare -m'
+ExecStart=unshare -m
 Type=oneshot
diff --git a/test/test-execute/exec-specifier.service b/test/test-execute/exec-specifier.service
index 70227eac68..65a64bc95e 100644
--- a/test/test-execute/exec-specifier.service
+++ b/test/test-execute/exec-specifier.service
@@ -3,22 +3,22 @@ Description=Test for specifiers
 
 [Service]
 Type=oneshot
-ExecStart=/usr/bin/test %n = exec-specifier.service
-ExecStart=/usr/bin/test %N = exec-specifier
-ExecStart=/usr/bin/test %p = exec-specifier
-ExecStart=/usr/bin/test %P = exec/specifier
-ExecStart=/usr/bin/test %i = ""
-ExecStart=/usr/bin/test %I = ""
-ExecStart=/usr/bin/test %f = /exec/specifier
-ExecStart=/usr/bin/test %t = /run
-ExecStart=/usr/bin/test %S = /var/lib
-ExecStart=/usr/bin/test %C = /var/cache
-ExecStart=/usr/bin/test %L = /var/log
-ExecStart=/bin/sh -c 'test %u = $$(id -un 0)'
-ExecStart=/usr/bin/test %U = 0
-ExecStart=/bin/sh -c 'test %h = $$(getent passwd 0 | cut -d: -f 6)'
-ExecStart=/bin/sh -c 'test %s = $$(getent passwd 0 | cut -d: -f 7)'
-ExecStart=/bin/sh -c 'test %m = $$(cat /etc/machine-id)'
-ExecStart=/bin/sh -c 'test %b = $$(cat /proc/sys/kernel/random/boot_id | sed -e 's/-//g')'
-ExecStart=/bin/sh -c 'test %H = $$(hostname)'
-ExecStart=/bin/sh -c 'test %v = $$(uname -r)'
+ExecStart=test %n = exec-specifier.service
+ExecStart=test %N = exec-specifier
+ExecStart=test %p = exec-specifier
+ExecStart=test %P = exec/specifier
+ExecStart=test %i = ""
+ExecStart=test %I = ""
+ExecStart=test %f = /exec/specifier
+ExecStart=test %t = /run
+ExecStart=test %S = /var/lib
+ExecStart=test %C = /var/cache
+ExecStart=test %L = /var/log
+ExecStart=sh -c 'test %u = $$(id -un 0)'
+ExecStart=test %U = 0
+ExecStart=sh -c 'test %h = $$(getent passwd 0 | cut -d: -f 6)'
+ExecStart=sh -c 'test %s = $$(getent passwd 0 | cut -d: -f 7)'
+ExecStart=sh -c 'test %m = $$(cat /etc/machine-id)'
+ExecStart=sh -c 'test %b = $$(cat /proc/sys/kernel/random/boot_id | sed -e 's/-//g')'
+ExecStart=sh -c 'test %H = $$(hostname)'
+ExecStart=sh -c 'test %v = $$(uname -r)'
diff --git a/test/test-execute/exec-specifier@.service b/test/test-execute/exec-specifier@.service
index a90af5aee4..f8d7dce680 100644
--- a/test/test-execute/exec-specifier@.service
+++ b/test/test-execute/exec-specifier@.service
@@ -3,22 +3,22 @@ Description=Test for specifiers (template unit)
 
 [Service]
 Type=oneshot
-ExecStart=/usr/bin/test %n = exec-specifier@foo-bar.service
-ExecStart=/usr/bin/test %N = exec-specifier@foo-bar
-ExecStart=/usr/bin/test %p = exec-specifier
-ExecStart=/usr/bin/test %P = exec/specifier
-ExecStart=/usr/bin/test %i = foo-bar
-ExecStart=/usr/bin/test %I = foo/bar
-ExecStart=/usr/bin/test %f = /foo/bar
-ExecStart=/usr/bin/test %t = /run
-ExecStart=/usr/bin/test %S = /var/lib
-ExecStart=/usr/bin/test %C = /var/cache
-ExecStart=/usr/bin/test %L = /var/log
-ExecStart=/bin/sh -c 'test %u = $$(id -un 0)'
-ExecStart=/usr/bin/test %U = 0
-ExecStart=/bin/sh -c 'test %h = $$(getent passwd 0 | cut -d: -f 6)'
-ExecStart=/bin/sh -c 'test %s = $$(getent passwd 0 | cut -d: -f 7)'
-ExecStart=/bin/sh -c 'test %m = $$(cat /etc/machine-id)'
-ExecStart=/bin/sh -c 'test %b = $$(cat /proc/sys/kernel/random/boot_id | sed -e 's/-//g')'
-ExecStart=/bin/sh -c 'test %H = $$(hostname)'
-ExecStart=/bin/sh -c 'test %v = $$(uname -r)'
+ExecStart=test %n = exec-specifier@foo-bar.service
+ExecStart=test %N = exec-specifier@foo-bar
+ExecStart=test %p = exec-specifier
+ExecStart=test %P = exec/specifier
+ExecStart=test %i = foo-bar
+ExecStart=test %I = foo/bar
+ExecStart=test %f = /foo/bar
+ExecStart=test %t = /run
+ExecStart=test %S = /var/lib
+ExecStart=test %C = /var/cache
+ExecStart=test %L = /var/log
+ExecStart=sh -c 'test %u = $$(id -un 0)'
+ExecStart=test %U = 0
+ExecStart=sh -c 'test %h = $$(getent passwd 0 | cut -d: -f 6)'
+ExecStart=sh -c 'test %s = $$(getent passwd 0 | cut -d: -f 7)'
+ExecStart=sh -c 'test %m = $$(cat /etc/machine-id)'
+ExecStart=sh -c 'test %b = $$(cat /proc/sys/kernel/random/boot_id | sed -e 's/-//g')'
+ExecStart=sh -c 'test %H = $$(hostname)'
+ExecStart=sh -c 'test %v = $$(uname -r)'
diff --git a/test/test-execute/exec-temporaryfilesystem-rw.service b/test/test-execute/exec-temporaryfilesystem-rw.service
index fc02ceab1c..379ad066fb 100644
--- a/test/test-execute/exec-temporaryfilesystem-rw.service
+++ b/test/test-execute/exec-temporaryfilesystem-rw.service
@@ -5,28 +5,28 @@ Description=Test for TemporaryFileSystem
 Type=oneshot
 
 # Check directories exist
-ExecStart=/bin/sh -c 'test -d /var/test-exec-temporaryfilesystem/rw && test -d /var/test-exec-temporaryfilesystem/ro'
+ExecStart=test -d /var/test-exec-temporaryfilesystem/rw -a -d /var/test-exec-temporaryfilesystem/ro
 
 # Check TemporaryFileSystem= are empty
-ExecStart=/bin/sh -c 'for i in $$(ls -A /var); do test $$i = test-exec-temporaryfilesystem || false; done'
+ExecStart=sh -c 'for i in $$(ls -A /var); do test $$i = test-exec-temporaryfilesystem || false; done'
 
 # Create a file in /var
-ExecStart=/bin/sh -c 'touch /var/hoge'
+ExecStart=touch /var/hoge
 
 # Create a file in /var/test-exec-temporaryfilesystem/rw
-ExecStart=/bin/sh -c 'touch /var/test-exec-temporaryfilesystem/rw/thisisasimpletest-temporaryfilesystem'
+ExecStart=touch /var/test-exec-temporaryfilesystem/rw/thisisasimpletest-temporaryfilesystem
 
 # Then, the file can be access through /tmp
-ExecStart=/bin/sh -c 'test -f /tmp/thisisasimpletest-temporaryfilesystem'
+ExecStart=test -f /tmp/thisisasimpletest-temporaryfilesystem
 
 # Also, through /var/test-exec-temporaryfilesystem/ro
-ExecStart=/bin/sh -c 'test -f /var/test-exec-temporaryfilesystem/ro/thisisasimpletest-temporaryfilesystem'
+ExecStart=test -f /var/test-exec-temporaryfilesystem/ro/thisisasimpletest-temporaryfilesystem
 
 # The file cannot modify through /var/test-exec-temporaryfilesystem/ro
-ExecStart=/bin/sh -c '! touch /var/test-exec-temporaryfilesystem/ro/thisisasimpletest-temporaryfilesystem'
+ExecStart=sh -c '! touch /var/test-exec-temporaryfilesystem/ro/thisisasimpletest-temporaryfilesystem'
 
 # Cleanup
-ExecStart=/bin/sh -c 'rm /tmp/thisisasimpletest-temporaryfilesystem'
+ExecStart=rm /tmp/thisisasimpletest-temporaryfilesystem
 
 TemporaryFileSystem=/var
 BindPaths=/tmp:/var/test-exec-temporaryfilesystem/rw